Buggy python submission (verdict: Runtime Error):
import sys
import math

def main(lines):
  line=lines.split()
  n = int(line[0])
  x = int(line[1])
  t = int(line[2])
  ans = math.ceil(n/x)*t
  print(ans)

if __name__ == '__main__':
    lines = []
    for l in sys.stdin:
        lines.append(l.rstrip('\r\n'))
    main(lines)


Fixed submission:
import sys
import math

def main(lines):
    line=lines.split()
    n = int(line[0])
    x = int(line[1])
    t = int(line[2])
    ans = math.ceil(n/x)*t
    print(ans)

if __name__ == '__main__':
    lines=input()
    main(lines)

Buggy python submission (verdict: Runtime Error):
import sys

def main(lines):
  line=lines[0]

if __name__ == '__main__':
    lines = []
    for l in sys.stdin
        lines.append(l.rstrip('\r\n'))
    main(lines)


Fixed submission:
import sys
import math

def main(lines):
    line=lines.split()
    n = int(line[0])
    x = int(line[1])
    t = int(line[2])
    ans = math.ceil(n/x)*t
    print(ans)

if __name__ == '__main__':
    lines=input()
    main(lines)

Buggy python submission (verdict: Runtime Error):
import sys

def main(lines):
  line=lines[0].split()
  n = int(line[0])
  x = int(line[1])
  t = int(line[2])
  ans = math.ceil(n/x)*t
  print(ans)

if __name__ == '__main__':
    lines = []
    for l in sys.stdin:
        lines.append(l.rstrip('\r\n'))
    main(lines)


Fixed submission:
import sys
import math

def main(lines):
    line=lines.split()
    n = int(line[0])
    x = int(line[1])
    t = int(line[2])
    ans = math.ceil(n/x)*t
    print(ans)

if __name__ == '__main__':
    lines=input()
    main(lines)

Buggy python submission (verdict: Runtime Error):
import sys

def main(lines):
  line=lines[0].split()
  n = int(line[0])
  x = int(line[1])
  t = int(line[2])
  ans = math.ceil(n/x)*t
  print(ans)

if __name__ == '__main__':
    lines = []
    for l in sys.stdin
        lines.append(l.rstrip('\r\n'))
    main(lines)


Fixed submission:
import sys
import math

def main(lines):
    line=lines.split()
    n = int(line[0])
    x = int(line[1])
    t = int(line[2])
    ans = math.ceil(n/x)*t
    print(ans)

if __name__ == '__main__':
    lines=input()
    main(lines)

Buggy python submission (verdict: Runtime Error):
import sys

def main(lines):
  line=lines[0].split()
  n = int(line[0])
  x = int(line[1])
  t = int(line[2])
  ans = math.ceil(n/x)*t
  print(ans)

if __name__ == '__main__'
    lines = []
    for l in sys.stdin
        lines.append(l.rstrip('rn'))
    main(lines)


Fixed submission:
import sys
import math

def main(lines):
    line=lines.split()
    n = int(line[0])
    x = int(line[1])
    t = int(line[2])
    ans = math.ceil(n/x)*t
    print(ans)

if __name__ == '__main__':
    lines=input()
    main(lines)

Buggy python submission (verdict: Runtime Error):
import sys

def main(lines):
  line = lines.split()
  n = int(line[0])
  x = int(line[1])
  t = int(line[2])
  ans = math.ceil(n/x)*t
  print(ans)
if __name__ == '__main__'
    lines = []
    for l in sys.stdin
        lines.append(l.rstrip('rn'))
    main(lines)


Fixed submission:
import sys
import math

def main(lines):
    line=lines.split()
    n = int(line[0])
    x = int(line[1])
    t = int(line[2])
    ans = math.ceil(n/x)*t
    print(ans)

if __name__ == '__main__':
    lines=input()
    main(lines)