{"raw_statement":[{"iden":"problem statement","content":"Find $\\displaystyle \\sum_{k=0}^{10^{100}} \\left \\lfloor \\frac{X}{10^k} \\right \\rfloor$."},{"iden":"notes","content":"$\\lfloor A \\rfloor$ denotes the value of $A$ truncated to an integer."},{"iden":"constraints","content":"*   $X$ is an integer.\n*   $1 \\le X < 10^{500000}$"},{"iden":"input","content":"Input is given from Standard Input in the following format:\n\n$X$"},{"iden":"sample input 1","content":"1225"},{"iden":"sample output 1","content":"1360\n\nThe value we seek is $1225+122+12+1+0+0+\\dots+0=1360$."},{"iden":"sample input 2","content":"99999"},{"iden":"sample output 2","content":"111105\n\nBeware of carries."},{"iden":"sample input 3","content":"314159265358979323846264338327950288419716939937510"},{"iden":"sample output 3","content":"349065850398865915384738153697722542688574377708317\n\nThe values in input and output can both be enormous."}],"translated_statement":null,"sample_group":[],"show_order":["default"],"formal_statement":null,"simple_statement":null,"has_page_source":true}